GitLab

**Description**
Install openmpi-4.0.0 for ROCm images.

**Description**
Setup docker environment in docker container.

**Major Revision**
- Install docker client for cuda and rocm images.
- Mount /var/run/docker.sock from host

**Description**
Add dockerfile `rocm4.0-pytorch1.7.0.dockerfile` and `rocm4.2-pytorch1.7.0.dockerfile` for `rocm` platform.

**Description**
Support rocm in third_party/makefile.

**Major Revision**
- Split rocm and cuda target in makefile
- Add target in dockerfile

Add perftest as a submodule and add build logic

Benchmarks: Build Pipeline - Add nccl-tests as a submodule and add build logic.

Update packages and add build cache for CUDA 11.1.1 Dockerfile:

* Remove duplicate cmake and ompi, which are already in base image
* Add hpcx and sharp lib
* Add cache for gitmodules build
* Sort apt-get packages

* add cutlass as submodule.
* add build script for cutlass.
* only support compute capability 7.0(V100) and 8.0(A100)

* call build script in Makefile.
* add cppbuild command for testing and docker env.

* add GitHub Action to build and push image
* update Dockerfile to copy from context

* Rename dev branch to main and set it as default.

* fix missing package in dockerfile
* update benchmark list and parameters
* catch runtime errors
* refine logging info

* add cuda11.1.1 dockerfile